All Wiring Diagrams for Lexus GS 300 1997 model

AIR CONDITIONING

Air Conditioning Wiring Diagrams (1 of 2) for Lexus GS 300 1997

List of elements for Air Conditioning Wiring Diagrams (1 of 2) for Lexus GS 300 1997:

(behind instrument cluster)
1994 vftc c
A/c ambient temperature sensor (front center of engine compt)
A/c control assembly (center of i/p)
A/c dual pressure switch (right front of engine compt)
A/c evaporator temperature sensor (right side of i/p)
A/c room temperature sensor (right side of i/p)
A/c solar sensor (right side of i/p)
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
Acc
Aif
Air
Air inlet control servo motor (right side of i/p)
Air mix control servo motor (center of i/p)
Air vent mode control servo motor (center of i/p)
Amc
Amh
Aod
Aof
B10
B11
Blw
C10
Cblo
Cbls
Data link connector 2
Defogger system
Din
Dout
E5 (eng harn, front center of eng compt)
G101 (front side of right fender)
G202
Gnd
I117 (i/p harn, center of i/p)
I56 (i/p harn, left side of i/p)
I88 (i/p harn, right side of i/p)
Ill+
Instrument cluster system (speedometer)
Interior lights system
J/b 3 (behind center of i/p)
J/c 10 (center of i/p)
J/c 11 (left side of i/p)
J/c 6 (center of i/p)
Lock in
Max cool control servo motor (center of i/p)
Mgc
Pnk
Psw
Rdfgr
Rheos
Speed
Tam
Tel in
Telephone transceiver & speaker relay (left side of trunk)
Tpi
Tpo
Ver1
Water temperature sensor (right side of i/p)

Air Conditioning Wiring Diagrams (2 of 2) for Lexus GS 300 1997

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List of elements for Air Conditioning Wiring Diagrams (2 of 2) for Lexus GS 300 1997:

1994 vftc c
A/c compressor relay
A/c lock amplifier (right side of i/p)
A/c lock sensor & a/c magnetic clutch (left front of engine)
A/c single pressure switch (right front of engine compt)
A17
Abs fusible link 60a
Acmg
B18
Blower motor (right side of i/p)
Blower motor control relay (right side of i/p)
C13
Cig fuse 15a
Condenser fan motor
D10
D13
D17
E25 (eng harness, left front of eng compt)
Ecu-b fuse 7.5a
Ecu-ig fuse 10a
Engine control module (right side of i/p)
G100 (left front fender)
G101 (right front fender)
G201 (behind glove box)
Gauge fuse 15a
Heater fusible link 50a
Heater relay
Hot at all times
Hot in accy, run or start
Hot in run or start
Ig-
Igniter (right side of engine compt)
J/b 1 (left kick panel)
J/b 3 (behind center of i/p)
J/c 1 (left side of engine compt)
J/c 4 (behind left side of i/p)
J/c 7 (center of i/p)
R/b 2 (left side of eng compt)
R/b 2 (left side of engine compt)
Radiator fan main relay
Radiator fan motor
Radiator fan relay
Rdi fan fuse 30a
Water temperature switch (left front of engine compt)

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams, with Traction Control (1 of 3) for Lexus GS 300 1997

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List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (1 of 3) for Lexus GS 300 1997:

(left side of i/p, near kick panel)
(right side of dash)
A15
A16
A17
A18
Abs and traction ecu
Abso
Alt
Ast
Batt
Brake fluid level warning switch (left rear side of engine compt)
Brc
Brfa
Brp
Charging system
D/g
D13
D14
D17
Daytime running light relay (left side of dash)
Diode (left kick panel)
E13
E14
E15
E16
Fl+
Fl-
Flo
Fr+
Fr-
Fro
G200 (left kick panel)
G203 (right kick panel)
Gnd
I101
I107
I137 (cowl harness, left side of dash)
I61 (cowl harness left side of i/p)
I74 (cowl harness, right side of dash)
J/b 3 (behind instrument cluster)
J/c 10 (upper center of dash)
J/c 7 (upper center of dash)
Lbl
Left front abs speed sensor (behind left front wheel disk)
Left rear abs speed sensor (behind left rear wheel disk)
Mtt
Nca
Parking brake
Pkb
Pnk
Red
Right front abs speed sensor (behind right front wheel disk)
Right rear abs speed sensor (behind right rear wheel disk)
Rl+
Rl-
Rlo
Rr+
Rr-
Rro
Sac
Sfl
Sfr
Smc
Src
Srl
Srr
Stp
Thfa
Tmr
Trco
Tsr

Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 3) for Lexus GS 300 1997

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List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 3) for Lexus GS 300 1997:

(cowl harn, left side of dash)
7.5a
Abs actuator (right front of engine compartment)
Abs fusible link 60a
Abs motor relay
Abs no. 2 fusible link 40a
Abs solenoid relay
All times
Alt fusible link 100a
E1 (engine room harness, above right front fender)
Ecu-b fuse
G100 (front left fender)
G101 (front side of right fender)
G200 (left kick panel)
Hot at
I135
J/c 1 (center of eng compt)
Pnk
R/b 2 (left side of engine compt)
Red
Trac fuse 10a
Traction actuator (right rear corner of engine compartment)
Traction motor relay
Traction pump and motor (right rear side of engine compartment)
Traction solenoid relay (right rear side of engine compartment)

Anti-lock Brake Wiring Diagrams, with Traction Control (3 of 3) for Lexus GS 300 1997

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List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (3 of 3) for Lexus GS 300 1997:

(engine harness, center of dash)
(right side of dash)
(shorting pin)
A/t indicator n light
Abs indicator
Abso
Acm
All times
Bat
Bcm
Brc
Brfa
Brp
C10
C11
Combination meter
Csw
Data link connector #1 (left side of eng compt)
Data link connector #2 (left side of dash)
Ecu-ig fuse 10a
Engine control module (behind center of dash)
Engine controls system
Flo
Fro
G131 (rear side of intake manifold)
G202 (behind combination meter)
G203 (right kick panel)
Gauge fuse 15a
Gnd
Hot at
Hot in run or start
I120
I121
I57 (i/p harness, left side of dash)
Idl1
Idl2
Ig1
Ind
J/b 1 (left side of dash)
J/b 3
J/c 10 (center of dash)
J/c 9 (right side of dash)
Nca
Neo
Park/neutral position switch
Pkb
Pnk
Pnk/
Red
Rlo
Rro
Stop fuse 20a
Stop light switch (behind left side of dash)
Stp
Sub throttle actuator (top right rear of engine)
T13
T14
Thfa
Tr2
Tr5
Trac indicator
Trac off indicator
Traction cut switch
Traction ecu
Trco
Vsh
Vth

Anti-lock Brake Wiring Diagrams, without Traction Control for Lexus GS 300 1997

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List of elements for Anti-lock Brake Wiring Diagrams, without Traction Control for Lexus GS 300 1997:

(left side of i/p, near kick panel)
(shorting pin)
7.5a
A15
A19
A20
Abs actuator (right front of eng compt)
Abs ecu (right side of dash)
Abs motor relay
Abs no. 2 fusible link 40a
Abs solenoid relay
Abs warning light
All times
Alt fusible link 100a abs fusible link 60a
Ast
Batt
Brake fluid level warning switch (left rear side of engine compt)
C10
C11
Combination meter
D13
D14
D17
Data link connector #1 (left side of eng compt)
Data link connector #2 (left side of dash)
E13
E14
E16
Ecu-b fuse
Ecu-ig fuse 10a
Fl+
Fl-
Fr+
Fr-
Fss
G100 (front left fender)
G101 (front side of right fender)
G200 (left kick panel)
G203 (right kick panel)
Gauge fuse 15a
Gnd
Hot at
Hot in run or start
I105
I98 (cowl wire harn, right side of i/p)
J/b 1 (left side of dash)
J/b 3 (behind instrument cluster)
J/c 1 (center of eng compt)
J/c 2 (left side of dash)
J/c 7 (center of dash)
J/c 9 (left side of dash)
Left front abs speed sensor (behind left front wheel disk)
Left rear abs speed sensor (behind left rear wheel disk)
Parking brake
Pkb
Pnk
R/b 2 (left side of engine compt)
Red
Right front abs speed sensor (behind right front wheel disk)
Right rear abs speed sensor (behind right rear wheel disk)
Rl+
Rr+
Rr-
Rss
Sfl
Sfr
Srr
Stop fuse 20a
Stop light switch (behind left side of dash)
Stp

ANTI-THEFT

Anti-theft Wiring Diagram (1 of 2) for Lexus GS 300 1997

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List of elements for Anti-theft Wiring Diagram (1 of 2) for Lexus GS 300 1997:

(body harness, behind rear seat) b41
(i/p harness left side of dash)
(i/p harness, center of dash) i13 (usa) i33 (canada)
(i/p harness, left kick panel)
(i/p harness, left side of dash)
(i/p harness, left side of dash) (usa) i11 (canada) i32
(i/p harness, right side of dash)
(i/p harness, right side of dash) i97
(left side of dash)
+b1
+b2
Acc
Act+
Act-
B11
C10
C11
Combination meter
Cty
D17
Dswd
Dswh
Dswl
Dswp
E20
Ecu-ig fuse 10a
Engine hood courtesy switch (center front of eng compt)
Exterior lights system (tail light relay)
G100 (front of left fender)
G200 (left kick panel)
G201 (behind glove box)
G203 (right kick panel)
G301 (below right front seat)
H19
H20
Head
Headlights system (headlight relay)
Horn
Horns system (horn relay)
Hot at all times
Hot in run
I102
I138
I143
I44
I48
I95
I96
Ignition/ unlock warning switch (behind steering wheel)
Ind
Interior lights system (luggage compt light)
J/b 1 (left side of dash)
J/b 3 (center of dash)
J/b 6 (left side of dash)
K12
Ksw
Left front door lock and unlock switch (rearward of left door)
Lswd
Lswp
Lswr
Lug
Luggage compartment light switch (center rear of trunk)
Open door warning lamp
Power fuse 30a
Power main relay
Power window/ door lock control switch (center of left door)
Power windows and or power tops
Prly
Red
Right front door lock and unlock switch (rearward of right door)
Right front door lock control switch (center of right door)
Srly
Starting/charging system (starter relay)
Tail
Theft deterrent ecu (left side of dash)
Theft deterrent indicator light (left side of dash)
Tsw
Ul1
Ul2
Ul3
Wireless door lock ecu (right rear of trunk)
Wireless door lock main switch

Anti-theft Wiring Diagram (2 of 2) for Lexus GS 300 1997

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List of elements for Anti-theft Wiring Diagram (2 of 2) for Lexus GS 300 1997:

(body harness, left front door sill)
(body harness, right front door sill)
(i/p harness, left side of dash) i43 (usa) i19 (canada)
(inside left rear door)
(inside right front door)
(inside right rear door)
A16
B12 (body harness, left rear door sill)
B15
B29
B30
B32
B34
B35
B42
B9 (body harness, left front door sill)
Cig fuse 15a
D10
Dome fuse 20a
Front seat)
G201 (behind glove box)
G203 (right kick panel)
G301 (below right
G400 (left side of luggage compartment)
Haz-horn fuse 20a
Hot at all times
Hot run or accy
I102
J/b 1 (left side of dash)
J/b 2 (left eng compt)
J/b 3 (center of dash)
J/c 5 (left side of dash)
J/c 7 (center of dash)
Left front door courtesy switch (near left rear door latch)
Left front door lock motor and door unlock detection switch (inside left front door)
Left rear door courtesy switch (near left rear door latch)
Left rear door lock motor and door unlock detection switch
Luggage comparment door opener motor (center rear of trunk)
Luggage compartment door opener switch (left side of dash)
Luggage compartment key unlock switch (center rear of trunk)
Right front door courtesy switch (near left rear door latch)
Right front door lock motor and door unlock detection switch
Right rear door courtesy switch (near right rear door latch)
Right rear door lock motor and door unlock detection switch
Theft deterrent horn (left rear of eng compt)

COMPUTER DATA LINES

Computer Data Lines for Lexus GS 300 1997

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List of elements for Computer Data Lines for Lexus GS 300 1997:

(behind glove box)
(engine harness, left side of engine)
(engine harness, rear of eng compt)
(front side of intake manifold)
(i/p harness, left side of dash) i57
(i/p harness, left side of dash) i63
(left side of engine compartment) j/b 2
(rear of intake manifold)
(w/ traction control) (behind glove box)
A/c
A/c control assembly
A/d
A11
A16
A18
A20
Abs
Abs and traction ecu (behind glove box)
Abs ecu (behind glove box)
Abs solenoid relay
Abs w/ traction control
Abs w/o traction control
C11
Canada
Center airbag sensor assembly (center console)
Combination meter
Cruise control ecu (behind left side of dash)
D/g
Dat
Data link connector 1 (left side of engine)
Data link connector 2 (behind left side of dash)
Data link connector 3 (behind left side of dash)
Din
Dout
E16
E21
E23 (engine harness, rear of eng compt)
Efi main relay
Engine control module (behind right side of dash)
Front main oxygen sensor (top right front of eng)
Fuel pump ecu (right rear of trunk)
G131
G201
Hot at all times
I118 (i/p harness, center of dash)
I133
I98 (i/p harness, right side of dash)
Idle air control valve (top center of engine)
Ind
J/c 11 (behind combin- ation meter)
J/c 6 (center of dash)
J/c 7 (behind combination meter)
J/c 8 (right side of dash)
J/c 9 (right side of dash)
Mass air flow meter (near air filter assembly)
Obd ii fuse 7.5a
Of dash) i87
Pnk
R/b 2 (left side of eng compt)
R/b 2 (left side of engine compartment)
Rear main no. 2 oxygen sensor (left rear of engine compartment)
Sdl
Sub heated oxygen sensor (center console)
Te1
Traction ecu
Trc
Usa
Vsv egr valve (top left side of engine)
Vsv evap control valve (left rear of engine compartment)
Vsv fuel pressure up (top left side of engine)
Vsv intake air control valve (top left side of engine)

COOLING FAN

Cooling Fan Wiring Diagram for Lexus GS 300 1997

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List of elements for Cooling Fan Wiring Diagram for Lexus GS 300 1997:

(engine room harness, left front of engine compt)
(left front fender)
(right front fender)
1994 vftc c
A/c single pressure switch (right front of engine compt)
Abs fusible link 60a
Condenser fan motor (left front of engine compt)
D17
E25
Ecu-ig fuse 10a
G100
G101
Hot at all times
Hot in run or start
J/b 1 (left kick panel)
J/b 3 (behind center of dash)
J/c 1 (left side of engine compt)
R/b 2 (left side of engine compt)
Radiator fan main relay
Radiator fan motor (left front of engine compt)
Radiator fan relay
Rdi fan fuse 30a
Water temperature switch (left front of engine compt)

CRUISE CONTROL

Cruise Control Wiring Diagram for Lexus GS 300 1997

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List of elements for Cruise Control Wiring Diagram for Lexus GS 300 1997:

(behind center of dash)
(i/p harness, center of dash)
(i/p harness, left side of dash)
A10
A12
A17
Acc
Am2
Am2 fuse 15a
B64
B76
Batt
C10
C11
Cancel
Ccs
Cms
Combination meter
Cruise control
Cruise control actuator (right rear of engine compartment)
Cruise control ecu (behind left side of dash)
Cruise control switch
D13
D15
D17
D18
Data link connector 2 (behind left side of dash)
E10
E16
Ect
Ecu-b fuse 7.5a
Ecu-ig fuse 10a
Electronic controlled transmission solenoid
Engine control module (right side of dash)
G107 (right front fender panel)
G202 (combination meter)
Gauge fuse 15a
Gnd
Hot at all times
Hot in run or start
I120
I131
I63
I76 (i/p harness, right side of dash)
Idl
Idl1
Ign
Ignition switch
J/b 1 (at left kick panel)
J/b 3
J/b 3 (behind center of dash)
J/b 3 (behind center or dash)
J/c 8 (behind right side of dash)
Main
N & c
Noise filter (behind center of dash)
Nsw
Od1
Off
On st2
Parking brake switch (on parking brake bracket)
Pkb
Pnk
Relay block 2 (left side of engine compartment)
Resume/ accel
Set/ coast
Spd
Speedo- meter
Start
Stop fuse 20a
Stop light switch (on brake pedal support)
Stp+
Stp-
Throttle position sensor
Vehicle speed sensor #1 (center rear of engine compt)
Vr1
Vr2
Vr3

DEFOGGERS

Defogger Wiring Diagram for Lexus GS 300 1997

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List of elements for Defogger Wiring Diagram for Lexus GS 300 1997:

(i/p harness, left side of dash) i8 (usa w/o traction control) i25 (canada, usa w/ traction control)
C10
C11
Defog fusible link 40a
Defogger relay
G200 (left kick panel)
G202
G203 (right kick panel)
G904 (left side of rear pillar)
Gauge fuse 15a
Gnd
H10
Heater
Hot at all times
Hot in start or on
J/b 1 (left kick panel)
J/b 3 (center of dash)
J/c 11 (left side of dash)
Left remote control mirror
Mir-htr fuse 10a
Noise filter
R-def
Rear window defogger
Rear window defogger switch (a/c control assembly)
Red b1
Right remote control mirror

ELECTRONIC POWER STEERING

Power Tilt & Telescopic Steering Column Wiring Diagram for Lexus GS 300 1997

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List of elements for Power Tilt & Telescopic Steering Column Wiring Diagram for Lexus GS 300 1997:

(behind glove box)
(i/p harness, left side of dash) i55
10a
15a
A17
Asw
Auto sw
D15
Dome fuse
Ecu-b
Ecu-e
Ecu-ig fuse
G201
G202
Gauge fuse
Gnd
Hot at all times
Hot in run
J/b 1 (left kick panel)
J/b 3 (behind combination meter)
J/c 11 (left side of dash)
J/c 4 (left side of dash)
J/c 7 (behind center of dash)
K11
Manual sw
Msw
Park/neutral position switch (on transmission)
Pnk
Power fusible link 30a
R/b 2 (left side of eng compt)
Red
Rm+
Rm-
T10
Telesco long
Telesco short
Telescopic control motor
Telescopic lock control motor
Telescopic position sensor
Tem+
Tem-
Tes
Tilt & power telescopic unit (combination switch)
Tilt and power telescopic ecu (left side of dash)
Tilt and power telescopic sensor & motor (left side of dash)
Tilt control motor
Tilt down
Tilt position sensor
Tilt up
Tim+
Tim-
Tis
Unlock warning switch (ignition switch)
Uwsw

Progressive Power Steering Wiring Diagram for Lexus GS 300 1997

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List of elements for Progressive Power Steering Wiring Diagram for Lexus GS 300 1997:

(behind glove box)
A17
A20
C10
Combination meter
D12
D15
D17
E10
Ecu-ig fuse 10a
G201
G202
Gauge fuse 15a
Hot in run
J/b 1 (left kick panel)
J/b 3 (behind center of dash)
J/b 3 (center of dash)
J/c 11 (behind combination meter)
J/c 7 (behind center of dash)
Progressive power steering ecu (left side of dash)
Progressive power steering solenoid (left front of engine)
Sol+
Sol-
Spd
Speedometer
Vehicle speed sensor no. 1 (on transmission)

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagrams (1 of 3) for Lexus GS 300 1997

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List of elements for 3.0L, Engine Performance Wiring Diagrams (1 of 3) for Lexus GS 300 1997:

#10
#20
#30
#40
#50
#60
(closed in park or neutral)
(eng harn, left of eng)
(eng harn, right side of dash)
(engine harn, rear of engine compt)
(engine harness, center rear of engine compt)
(engine harness, top front of engine)
(front side
(i/p harn, left side of dash)
(i/p harn, lower center of dash)
(left
(on
Acc
Acis
Am2
Coil -
Coil wire
Conn e8
Crankshaft position sensor (right front of engine)
Distributor (top front of engine) ne
E01
E02
E03
E14
E16
E19
E26
Efi fuse 20a
Efi relay
Egf
Egr
Electronically controlled transmission solenoid
Engine control module (under front end of center console)
Evap
Fpc
Fuel injectors
Fuel pump ecu (left rear of trunk)
G100
G112
G112 (rear side of intake manifold)
G300 (under left front seat)
Hot at all times
Ht1
Ht2
I128
I130
I133
I134
I45
Idl1
Idl2
Idle air control valve (top right of engine)
Ig-
Ig2
Ig2 fuse 30a
Ig2 relay
Igf
Igniter (right side of engine compartment)
Ignition coil (right side of engine compt)
Ignition switch
Igt
Isc1
Isc2
Isc3
Isc4
J/b 1 (left kick panel)
J/c 1 engine compt)
J/c 6 (behind center of dash)
Knk1
Knk2
Knock sensor 1 (top left front of engine)
Knock sensor 2 (left rear of engine)
Lock
Nc2 dram speed sensor
Nc2+
Nc2-
Nco+
Nco-
Ne2
Ne2-
Noise filter (right engine compt)
Nsw
O/d direct clutch speed sensor
Of intake manifold)
Of left fender)
Ox1
Ox2
Park/neutral position switch (on transmission)
R/b 2 (left side of engine compartment)
Red
Sln-
Slt+
Slt-
Slu-
Sp2+
Sp2-
St2
Sta
Start
Tha
Thg
Tho
Thw
Trac ctrl sys
Vcc
Vehicle speed sensor 2 transmission)
Vg-
Vta1
Vta2
W/ trac ctrl
W/o trac ctrl
W/trac ctrl
Wire coil

3.0L, Engine Performance Wiring Diagrams (2 of 3) for Lexus GS 300 1997

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List of elements for 3.0L, Engine Performance Wiring Diagrams (2 of 3) for Lexus GS 300 1997:

(behind glove box) g201
(eng harn, center rear of eng compt)
(engine harn, center rear of engine compt)
(i/p harn, at left kick panel)
(i/p harn, behind center of dash)
(i/p harn, behind comb meter)
(i/p harn, behind combi- nation meter)
(i/p harn, behind glove box)
(i/p harn, center of dash)
(left front
* (i/p harn, behind glove box)
* *
* i83
A/t indicator light
A/t indicator light switch (on transmission)
A17
A18
Anti-lock brakes system
C10
C13
C14
C15
C23
Combination meter
Coolant
D17
E20
E21
E23
Ect pwr.
Ecu-ig fuse 10a
Egr gas
Egr valve (left side of engine)
Electronically controlled transmission pattern select switch (on console)
Engine
Engine compt)
Evap valve (left rear of engine)
Fuel pressure up valve (left side of engine)
G202 (behind combi- nation meter)
Gauge fuse 15a
Hot in on or start
I118
I120
I122
I123
I124
I125
I54
I65
I68
I72
I75
I78
I79
I80
I87
I92
I93
I94
Idl1
Idl2
Intake control valve (left side of engine)
J/b 1 (left
J/b 1 (left kick panel)
J/b 3 (behind center of dash)
J/c 7 (behind center of dash)
J/c 9 (behind right side of dash)
Kick panel)
Malf. ind. lamp
Norm.
O/d main switch (in center console)
O/d off ind.
Of engine)
Pwr.
Red
Sensor
Sensor (center rear of
Solid state
Speedometer
Sub throttle position sensor (right center of engine)
Tacho- meter
Temperature
Throttle position sensor (top center of engine)
Vcc
Vehicle speed sensor (on transmission)
Vta
Vta1
W/ traction control

3.0L, Engine Performance Wiring Diagrams (3 of 3) for Lexus GS 300 1997

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List of elements for 3.0L, Engine Performance Wiring Diagrams (3 of 3) for Lexus GS 300 1997:

(behind
(center front of engine)
(dash harness, center of dash)
(front side of left fender) g100
(left side of engine compartment)
(rear side of intake manifold) g112
A/c
Acmg
Air conditioning system
B10
B19
B21
B22
Batt
Conn e7
Cruise control system
Data link connector 1
Data link connector 3 (behind left side of dash)
Defogger system
E10
E11
E17
Els
Engine control module (under front end of center console)
Fpc
G112 (left side of engine)
G112 (rear side of intake manifold)
G201 (behind glove box)
G202 (behind combination meter)
Hot at all times
Ht1
Ht2
Htl2
I121
I133
I85
I99
Idl1
Idl2
Idle-up diode (left kick panel)
Igsw
Interior lights system
J/b 1 (left kick panel)
J/b 1 (left kick panel)
J/b 3 center of dash)
J/c 7 (behind center of dash)
M-rel
Main heated oxygen sensor (front) (right front of engine)
Main heated oxygen sensor (rear) (right rear of engine)
Mass air flow meter (right front of engine compt)
Neo
Obdii fuse 7.5a
Od1
Od2
Ox1
Ox2
Ox3
Pnk
Power steering pressure switch
R/b 2 (left side of engine compt)
Red
Sp1
Spd
Stop fuse 20a
Stop light switch (behind left side of dash)
Sub heated oxygen sensor (bottom center of vehicle)
Te1
Tr2
Traction ecu (behind glove box)
Vsh
Vth
Vto1
Vto2
W/electronic controlled transmission
W/traction control

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Lexus GS 300 1997

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List of elements for Back-up Lamps Wiring Diagram for Lexus GS 300 1997:

(body harness, right side of trunk) b46
A17
B51
Back- up lamp
Back-up light switch (park/neutral position switch)
D15
G403 (right rear of trunk)
Gauge fuse 15a
Hot in on or start
J/b 1 (left side of dash)
J/b 3 (behind center of dash)
J/c 13
Left rear combination light
Red
Right rear combination light

Exterior Lamps Wiring Diagram (1 of 2) for Lexus GS 300 1997

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List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Lexus GS 300 1997:

(body harness, right rear of trunk)
(body harness, right side of trunk)
(i/p harness, left side of dash)
(usa) i15 (canada) i27
A17
Alt fusible link 100a
Automatic light control sensor
B43
B45
B49
B50
B51
B52 (body harness, right rear of trunk)
B53
C10
Combination meter
Combination switch
D11
E17
G403 (right rear of trunk)
Gauge fuse 15a
Head
High mount stop light
Hot at all times
Hot in on or start
Integration relay (left side of dash)
J/b 1 (left kick panel)
J/b 3 (behind center of dash)
J/c 11 (left side of dash)
J/c 13
J/c 3 (left side of dash)
J14
Left license plate light
Left rear combination light
Light failure sensor (right rear side of trunk)
Off
R/b 2 (left side of engine compartment)
Rear light warning light
Right license plate light
Right rear combination light
Stop fuse 20a
Stop light
Stop light switch (near brake pedal)
Tail
Tail fuse 10a
Tail- light
Taillight relay
Turn signal light

Exterior Lamps Wiring Diagram (2 of 2) for Lexus GS 300 1997

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List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Lexus GS 300 1997:

(behind center of dash)
(i/p harness, left side of dash) i59
(i/p harness, right side of dash)
(i/p harness, right side of dash) i91
C10
Combination meter
Combination switch
E2 (engine harness, right front of eng compt)
G100 (front side of left fender)
G101 (front side of right fender)
G200 (left kick panel)
G201 (behind glove box)
Haz-horn fuse 20a
Hazard switch
Hot at all times
Hot in on or start
I46 (i/p harness, left side of dash)
I58 (i/p harness, left side of dash)
I90
J/b 1 (left kick panel)
J/c 3 (left side of dash)
J/c 7
Left
Left front clearance light
Left front turn light
Left turn signal ind
R/b 2 (left side of eng compt)
R/b 6 (left kick panel)
Right
Right front clearance light
Right front turn light
Right turn signal ind
Turn fuse 10a
Turn signal flasher
Turn signal switch

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Lexus GS 300 1997

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List of elements for Ground Distribution Wiring Diagram (1 of 5) for Lexus GS 300 1997:

(behind left headlight)
(canada)
(engine harn, right rear of engine compt)
(engine harness, below front of center console)
(engine harness, left rear of engine)
(engine harness, left side of i/p)
(engine room harn, behind center of radiator)
A/c dual pressure switch
Abs actuator
Abs solenoid relay
B20
B69
B78
B79
B80
C22
Condenser fan motor
Cruise control actuator
Data link connector 1
Data link connector 2
Data link connector 3
Daytime running light relay no. 3
E11
E17
E18
E26
Efi main relay
Engine control module
Engine hood courtesy switch
Engine oil level warning switch
G100 (front side of left fender)
G101 (front side of right fender)
G131 (front side of intake manifold)
G131 (rear side of intake manifold)
Heater relay
I121
I133
Ig2 relay
Instrument cluster
J/b 2
J/c 1
J/c 9
Left fog light
Left lo headlight
Main heated oxygen sensor (front side)
Main heated oxygen sensor (rear side)
Noise filter
Power steering pressure switch
Radiator fan motor
Rdi fan main relay
Right fog light
Right front turn and parking light
Right lo headlight
Sub heated oxygen sensor
Traction ecu (traction control)
Volume air flow meter (1995)
W/ traction control
W/o traction control
Water temperture switch

Ground Distribution Wiring Diagram (2 of 5) for Lexus GS 300 1997

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List of elements for Ground Distribution Wiring Diagram (2 of 5) for Lexus GS 300 1997:

(behind instrument cluster)
(cowl harness, at right kick panel)
(cowl harness, at right kick panel)
A/c control assembly
A10
A13
A14
A21
A25
Abs and traction ecu (traction control)
Abs ecu (w/o traction control)
B13
B14
B15
Behind left side of i/p)
C12
Center airbag sensor assembly
Cigarette lighter
Clock
Combination meter
Cruise control ecu
Cruise control switch
D12
Data link connector
Daytime running light relay (canada)
Dimmer switch
G202
G203 (right kick panel)
Headlight cleaner motor (canada)
I101
I102
I104
I105
I107
I39
Instrument cluster
J/b 1
J/b 3
J/c 11
J/c 7
Key interlock solenoid
Light control switch
Right door lock control switch
Right front door key lock and unlock switch
Right front door lock motor and door unlock detection switch
Right remote control mirror and mirror heater
Shift lock ecu
Tilt and power telescopic ecu
To g201 (diagram 3 of 5)
Traction cut switch (w/traction control)
Traction ecu (traction control)
Usa
Wiper and washer switch
Wiper relay

Ground Distribution Wiring Diagram (3 of 5) for Lexus GS 300 1997

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List of elements for Ground Distribution Wiring Diagram (3 of 5) for Lexus GS 300 1997:

(cowl harness, behind center of i/p)
(cowl harness, behind left side of i/p)
(cowl harness, behind right side of i/p)
(cowl harness, behind steering column)
(cowl harness, left kick panel)
(cowl harness, left side of i/p)
(roof harness, right side of roof)
A/c lock amplifier
A/t indicator light
B23
Blower motor control relay
Brake fluid level warning switch
C11
Canada
Center airbag sensor assembly
Data link connector
Daytime running light relay no. 4
From g202 a (diagram 3 of 5)
Front personal light
G200 (left kick panel)
G201 (behind glove box)
G206 (behind center of i/p)
G904 (left rear pillar)
G908 (front side of roof header)
Glove box light switch
Headlight cleaner relay (canada)
I138
I142
I30
I55
I60
I67
I68
I69 (cowl harn, behind center of i/p)
Instrument cluster
Integration relay
J/b 1
J/c 2
J/c 7
Keyless buzzer (1996 usa)
Left remote control mirror and mirror
Left vanity light
Luggage compartment door opener switch
Moon roof control relay
Moon roof control switch
Moon roof motor and limit switch
Noise filter
O/d main switch
Power main relay
Pps ecu
R/b 6
Radio and player
Rear window defogger
Remote control mirror switch
Rheostat
Right vanity light
Seat heater switch
Theft deterrent ecu
Tilt and power telescopic ecu
Traction pump and motor
Turn signal flasher
Unlock warning switch
Washer level warning switch
Wiper motor

Ground Distribution Wiring Diagram (4 of 5) for Lexus GS 300 1997

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List of elements for Ground Distribution Wiring Diagram (4 of 5) for Lexus GS 300 1997:

(floor 2 harness, base of left "b" pillar)
(floor 2 harness, below left door sill)
(floor 2 harness, below left front door sill)
(floor 2 harness, left rear of trunk)
(floor 2 harness, left side of trunk)
(left front seat harness, below left front seat)
A11
Auto antenna motor and relay
B11
B15
B19
B20
B61
B62
Driver's power seat control switch
Driver's seat heater
Fuel lid opener motor
Fuel pump
Fuel pump ecu
G300 (under left front seat)
G402 (left side of luggage compartment)
J/c 12
Left buckle switch
Left condenser
Left front door courtesy switch
Left front door key lock and unlock switch
Left front door lock motor and door unlock detection switch
Left rear ashtray illumination
Left rear door courtesy switch
Left rear door lock motor and door unlock detection switch
Left rear personal light
Power window master switch and door lock control switch
Telephone transceiver and speaker switch

Ground Distribution Wiring Diagram (5 of 5) for Lexus GS 300 1997

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List of elements for Ground Distribution Wiring Diagram (5 of 5) for Lexus GS 300 1997:

(floor 1 harness right rear of
(floor 1 harness, below center console)
(floor 1 harness, right front door sill)
(right front seat harn, below right front seat)
(right front seat harness, below right front seat)
B23
B35
B42 (floor 1 harness, right front of trunk)
B47 (floor 1 harness, right rear of trunk)
B50 (floor 1 harness, right rear of trunk)
B63
B65
G301 (under right front seat)
G403 (right side of luggage compartment)
High mount stop light
J/c 13
Left license plate light
Left rear combination light
Light failure sensor
Luggage compartment key unlock switch
Mobile phone
Passenger's power seat control switch
Passenger's seat heater
Rear cigarette lighter
Rear cigarette lighter illumination
Right buckle switch
Right condenser
Right front courtesy switch
Right license plate light
Right rear ashtray illumination
Right rear combination light
Right rear door courtesy switch
Right rear door lock motor and door unlock detection switch
Right rear personal light
Stereo component amplifier
Trunk) b51
Wireless door lock ecu

HEADLIGHTS

Headlight Wiring Diagram, with DRL (1 of 2) for Lexus GS 300 1997

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List of elements for Headlight Wiring Diagram, with DRL (1 of 2) for Lexus GS 300 1997:

(at left kick panel)
(left side of right front fender)
(right side of right front fender)
A15
Brake fluid level warning switch
Combination meter
D13
Daytime running light no. 2 relay
Daytime running light no. 3 relay
Daytime running light no. 4 relay
Daytime running light relay (left side of dash)
Drl fuse 7.5a
E16
Ecu-b fuse 7.5a
G100
G101
G200
Gauge fuse 15a
Generator
Head (lh-lwr) fuse 10a
Head (lh-upr) fuse 10a
Head (rh-lwr) fuse 10a
Head (rh-upr) fuse 10a
Head- light relay
Headlight cleaner diode
High beam ind
Hot at all times
Hot in run
I26 (i/p harness, left side of dash)
J/b 1 (at left kick panel)
J/b 1 (left kick panel)
J/b 3 (center of dash)
J/c 1 (left side of engine compartment)
J/c 7 (center of dash)
Left hi beam headlight
Left lo beam headlight
Main fusible link 50a
Parking brake switch
R/b 2 (left side of engine compartment)
R/b 2 (left side of engine compt)
R/b 6 (left kick panel)
Red
Red/
Right hi beam headlight
Right lo beam headlight
Traction control diode

Headlight Wiring Diagram, with DRL (2 of 2) for Lexus GS 300 1997

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List of elements for Headlight Wiring Diagram, with DRL (2 of 2) for Lexus GS 300 1997:

(behind center of dash)
(engine harness, left front of eng compt) e10
(left kick panel)
Auto
Automatic light sensor (behind left side of dash)
B12
B21
Combination light switch control switch
Cty
Dimmer switch
Dome fuse 10a
E19
Ecu-ig fuse 10a
Flash
Fog fuse 15a
Fog light relay
Fog light switch
G100 (front side of left fender)
G101 (front side of right fender)
Head
High
Hot at all times
Hot in run
Integration relay
J/b 1
J/b 1 (left kick panel)
J/b 3
J/b 3 (center of dash)
J/c 11 (behind combination meter)
J/c 12 (left side of trunk)
J/c 2 (left side of dash)
Left fog light
Left front door courtesy switch
Off
R/b 2 (left side of engine compartment)
R/b 6 (left kick panel)
Red
Right fog light
Tail

Headlight Wiring Diagram, without DRL for Lexus GS 300 1997

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List of elements for Headlight Wiring Diagram, without DRL for Lexus GS 300 1997:

(engine harness, front of eng compt) e3
(engine harness, front of eng compt) e6
(engine harness, left front of engine harness) e12
Auto
Automatic light sensor (behind left side of dash)
B12
B21
Combination fog switch light switch
Combination meter
Cty
Dimmer switch
Dome fuse 10a
E10 (engine harness, left front of eng compt)
E19
Ecu-ig fuse 10a
Flash
Fog fuse 15a
Fog light relay
G100 (front side of left front fender)
G101 (front side of right front fender)
G101 (right side of right front fender)
Head
Head lh fuse 15a
Head rh fuse 15a
Head- light relay
High
High beam ind
Hot at all times
Hot in run
Integration relay
J/b 1 (left kick panel)
J/b 3 (behind center of dash)
J/b 3 (center of dash)
J/c 11 (behind combination meter)
J/c 12 (left side of trunk)
J/c 2 (left side of dash)
J10
J11
Left fog light
Left front door courtesy switch
Left hi beam headlight
Left lo beam headlight
Light control switch
Main fusible link 50a
Off
R/b 2 (left side of engine compartment)
R/b 6 (left kick panel)
Red
Right fog light
Right hi beam headlight
Right lo beam headlight
Tail

HORN

Horn Wiring Diagram for Lexus GS 300 1997

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List of elements for Horn Wiring Diagram for Lexus GS 300 1997:

Combination switch
Haz-horn fuse 20a
High horn
Horn relay
Horn switch
Hot at all times
J/c 3 (left side of dash)
Low horn
R/b 2 (left side of engine compartment)
Theft deterrent ecu (left side of dash)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram (1 of 2) for Lexus GS 300 1997

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List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Lexus GS 300 1997:

(behind center of dash)
(center of dash)
(i/p harness, front of center console)
(left side of eng)
A/b
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
Abs ind
Anti-lock brakes system
B10
Brake ind
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
Charge ind
Combination meter
Cruise ind
D12
D16
D17
Delay circuit
Door ind
Ect power ind
Ecu-ig fuse 10a
Exterior lights system (combination switch)
Fuel
Fuel sender (below rear of vehicle on fuel tank)
G131 (front side of intake manifold)
G201 (behind glove box)
G202
Gauge fuse 15a
H18
Headlights system
High beam ind
Hot at all times
Hot in on or start
Hot in run
Hot with taillight relay energized
I125
Igniter (right side of engine compartment)
Illumination
Ind
Integration relay
Interior lights system (door courtesy switch)
Interior lights system (rheostat)
J/b 1 (left side of dash)
J/b 3
J/c
J/c 7 (center of dash)
Left turn ind
Light failure sensor (right side of trunk)
Low fuel ind
Malfunction ind
O/d off ind
Odometer
Oil ind
Oil level ind
Oil pressure switch (left front of eng)
Panel fuse 7.5a
Rear light ind
Reset
Right turn ind
Seat belt
Speed meter
Srs fuse 7.5a
Srs ind
Starting/ charging system (generator)
T14
Tach
Taillite/hdlite ltg ind
Trac ind
Trac off ind
Traction ecu (behind right side of dash)
Vehicle speed sensor (lower rear of eng)
Washer level ind
Water temp
Water temperature sender

Instrument Cluster Wiring Diagram (2 of 2) for Lexus GS 300 1997

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List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Lexus GS 300 1997:

(behind glove box)
A/c control assembly (center of dash)
A/t indicator light switch (part of park/ neutral position switch)
A12
A15
A19
Acc
Am2 fuse 15a
B11
Brake fluid level warning switch (on brake fluid reservoir)
Brk
Canada
Canada w/ traction control
Center airbag sensor assembly (behind center of dash)
Cruise control ecu (center of dash)
Daytime running light relay (left side of dash)
Diode (traction control) (left side of dash)
Dome fuse 10a
E10
E16
Electronic control transmission pattern select switch (below center of console)
Engine control module (behind right side of dash)
Engine oil level warning switch (left front of engine)
G131 (front side 0f intake manifold)
G200 (left kick panel)
G201
Hot at all times
I20 (i/p harness, left side of dash)
Ignition switch start
J/b 1 (behind left side of dash)
J/b 1 (left kick panel)
J/b 2 (left side of eng compt)
J/b 3 (center of dash)
J/c 2 (left kick panel)
J/c 3 (behind left side of dash)
J/c 9 (right side of dash)
K12
Lock
Normal
O/d main switch (below center of console)
P/n
Park/ neutral position switch (lower rear of engine compartment)
Parking brake switch (below console)
Pkb
Power
Run
Start
Usa
Usa w/ traction control
Usa w/o traction control
Washer level sensor (left front of eng compt)

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram for Lexus GS 300 1997

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List of elements for Courtesy Lamps Wiring Diagram for Lexus GS 300 1997:

(body harness, front of roof) b1
(body harness, left rear door sill) b12
(body harness, right front door sill) b26
(body harness, right front door sill) b36
(i/p harness, left side of dash) i47
(usa) i23 (canada) i38 (i/p harness, left side of dash)
A11
B14 (body harness, left rear door sill)
B16 (body harness, behind left rear seat)
B17 (body harness, behind left rear seat)
B19
B27 (body harness, right front door sill)
B34 (body harness, right front door sill)
B38 (body harness, behind rear seat)
B40 (body harness, behind rear seat)
B5 (body harness, left front door sill)
B66 (body harness, left rear door sill)
Cig fuse 15a
Cty
Diode (left side of dash)
Diode (left side of i/p)
Dlmp
Dome fuse 10a
Door
E11
Front personal light
G201 (behind glove box)
G300 (under left front seat)
G301 (under right front seat)
Gauge fuse 15a
Grd
Hot at all times
Hot in run or acc
I28 (usa) i39 (canada) (i/p harness, left side of dash)
I50 (i/p harness, left side of dash)
Ignition key cylinder switch
Integration relay
J/b 1 (left kick panel)
J/b 3 (center of dash)
J/c 12 (left side of trunk)
J/c 13 (right side
Left condenser
Left front door courtesy light
Left front door courtesy switch
Left rear door courtesy light
Left rear door courtesy switch
Left rear personal light
Left step light
Left vanity light
Luggage compartment light
Luggage compartment light switch
Of trunk)
Off
R/b 2 (left side of engine compartment)
Red
Right condenser
Right front door courtesy light
Right front door courtesy switch
Right rear door courtesy light
Right rear door courtesy switch
Right rear personal light
Right step light
Right vanity light
Theft deterrent ecu

Instrument Illumination Wiring Diagram for Lexus GS 300 1997

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List of elements for Instrument Illumination Wiring Diagram for Lexus GS 300 1997:

(i/p harness, right side of dash)
A/c control lamp
A/t indicator lamp
A18
Alt fusible link 100a
B15
B33 (body harness, right front door sill)
C10
C11
C16
Cigarette lighter lamp
Clock lamp
Combination meter
Combination switch
D16
D17
E18
Ecu-ig fuse 10a
Electronic controlled transmission pattern select switch lamp
F10
G201 (behind glove box)
G201 (left side of trunk)
G202 (behind combination meter)
G301 (under right front seat)
Gauge fuse 15a
Glove box lamp
Glove box light switch
H18
Hazard switch lamp
Head
Hot at all times
Hot in run
I108 (i/p harness, below center console)
I110 (i/p harness, center of dash)
I111 (i/p harness, center of dash)
I73
Illumination
Integration relay (left side of dash)
J/b 1 (left kick panel)
J/b 3 (center of dash)
J/c 10 (center of dash)
J/c 11
J/c 12
J/c 3 (left side of dash)
J/c 6 (center of dash)
J/c 7 (center of dash)
Left rear ashtray lamp
Off
Panel fuse 7.5a
R/b 2 (left side of engine compartment)
Radio & player lamp
Rear cigarette lighter lamp
Rheostat (left side of dash)
Right rear ashtray lamp
Seat heater switch lamp
Solid state
Tail
Taillight relay
Taillight/ headlight lighting ind

PASSIVE RESTRAINTS

Electric Tension Reducer Wiring Diagram for Lexus GS 300 1997

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List of elements for Electric Tension Reducer Wiring Diagram for Lexus GS 300 1997:

(usa) i18 (canada) i41 (i/p harness, left side of dash)
D17
Ecu-ig fuse 10a
G301 (under right front seat)
G402
Hot in run or start
J/b 1 (left kick panel)
J/b 3 (center of dash)
J/c 12 (left rear of luggage compartment)
Left buckle switch (left seat belt buckle)
Left tension reducer solenoid (lower left "b" pillar)
Right buckle switch (right seat belt buckle)
Right tension reducer solenoid (lower right "b" pillar)

POWER ANTENNA

Power Antenna Wiring Diagram for Lexus GS 300 1997

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List of elements for Power Antenna Wiring Diagram for Lexus GS 300 1997:

(left
Acc
Amp
Amp+b svcc
Ant+b
Anta
Antb
Antb sig
Auto antenna control relay
Auto antenna motor
Auto antenna motor & relay (left rear of luggage compartment)
B13
Cig fuse 15a
D10
Dome fuse 10a
Down
Ecu-ig fuse 10a
G402
Gnd
Hot at all times
Hot in acc or run
Hot in run or start
J/b 1 (left kick panel)
J/b 3 (center of dash)
J/c 12
R/b 2 (left side of engine compartment)
Radio & player
Red
Sensor
Sgnd
Side of luggage compt)

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 2) for Lexus GS 300 1997

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List of elements for Power Distribution Wiring Diagram (1 of 2) for Lexus GS 300 1997:

(canada)
(i/p harn, near left kick panel) i24
A10
A12
Abs solenoid relay
Abs 1 fusible link 60a
Alt fusible link 100a
Am1 fusible link 40a
Battery
C10
Combination meter
Cruise control ecu, stop light switch
Data link connector 3
Daytime running light relay no. 2
Defog fuse 40a
Defogger relay
Drl fuse 7.5a (canada)
Exterior lights system (taillights)
Fog fuse 15a
Fog light relay
From gauge fuse (j/b 1) (diagram 2 of 2)
Generator
H10
H18
H20
Head (lh-lwr) fuse 10a
Head (lh-upr) fuse 10a (canada)
Head (rh upr) fuse 10a (canada)
Head (rh-lwr) fuse 10a
Head lh fuse 15a (usa)
Head rh fuse 15a (usa)
Headlight cleaner relay
Headlight relay
Headlight system
Heater fusible link 50a
Heater relay
Interior lights system, diode (idle up)
J/b 1
J14
J15
K10
K11
Left heated mirror, right heated mirror, idle-up diode
Main fusible link 50a
Mir-htr fuse 10a
Nca
Noise filter
Obd ii fuse 7.5a
Panel fuse 7.5a
Passenger's power seat control switch, tilt and power telescopic ecu
Power fuse 30a
R/b 2
Radiator fan main relay
Rdi fan fuse 30a
Rdi fan relay
Rear window defogger noise filter
Shorting pin
Srs fuse 7.5a
Starter
Starter relay
Stop fuse 20a
Tail fuse 10a
Taillight relay
Theft deterrent ecu, power main relay, driver's power seat control switch
To abs 2 fusible link (r/b 2) (diagram 2 of 2)
To ignition switch (diagram 2 of 2)
Trac fuse 10a
Traction ecu
Traction solenoid relay

Power Distribution Wiring Diagram (2 of 2) for Lexus GS 300 1997

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List of elements for Power Distribution Wiring Diagram (2 of 2) for Lexus GS 300 1997:

(behind combination meter)
(under right front seat)
A/c control assembly, radio and player, clock
A12
Abs motor relay
Abs no. 2 fusible link 40a
Acc
Alt sensing fuse 7.5a
Am2 fuse 15a
Auto antenna motor and relay, telephone transceiver and speaker relay, left tension reducer solenoid, tilt and power telescope ecu, abs ecu, abs and traction ecu, traction ecu, right tension reducer solenoid, mobile phone, theft deterrent ecu, right door lock control switch, rheostat, shift lock ecu, pps ecu, rdi fan main relay, rdi fan relay, electronic controlled transmission pattern select switch, noise filter, automatic light sensor, wireless door lock ecu
B13
C10
C12
Center air bag sensor assembly
Center air bag sensor assembly, ig2 relay, combination meter, engine control module
Cig fuse 15a
Cigarette lighter
Cruise control ecu, a/c control assembly, traction ecu, daytime running light relay, abs and traction ecu, fuel lid opener switch, abs ecu
D10
Dome fuse 10a
Ecu-b fuse 7.5a
Ecu-ig fuse 10a
Efi fuse 20a
Efi main relay
Engine control module
From am1 fusible link (r/b 2) (diagram 1 of 2)
From main fusible
G10
G202
G301
Gauge fuse 15a
Generator
H15
Haz-horn fuse 20a
Hazard switch
Heater relay, a/c comp relay, a/c control assembly, max cool servo motor, a/c lock amplifier, park/neutral position switch, vehicle speed sensor, light failure sensor, combination meter, daytime running light relay, generator
Ig2 fuse 30a
Ig2 relay
Ignition key cylinder light, integration relay, theft deterrent ecu, combination meter, wireless door lock ecu, right step light, left step light, clock, tilt and power telescopic ecu, radio and player, automatic light sensor, front personal light, left vanity light, right vanity light, right rear personal light, right rear door courtesy light, right front door courtesy light, luggage compartment light, right condenser, left rear personal light, left rear door courtesy light, left front door courtesy light, left condenser, auto antenna motor and relay
Ignition switch
Integration relay
J/b 1
J/b 3
Link (r/b 2) (diagram 1 of 2)
Lock
Park/neutral position switch, engine control module, cruise control ecu
R/b 2
Rad no. 1 fuse 25a
Radio and player
Rear cigarette lighter
Remote control mirror switch, shift lock ecu, theft deterrent ecu
Run
Seat heater switch
Seat-htr fuse 15a
Start
Stereo component amplifier, auto antenna motor and relay, radio and player
Tel fuse 15a
Telephone transceiver and speaker relay
Theft deterrent horn, hazard switch, horn relay
To defogger relay (j/b 1) (diagram 1 of 2)
Traction motor relay
Turn fuse 10a
Wiper fuse 20a
Wiper motor
Wiper relay, wiper and washer switch, washer motor, headlight cleaner relay

POWER DOOR LOCKS

Keyless Entry & Anti-Theft Wiring Diagram (1 of 2) for Lexus GS 300 1997

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List of elements for Keyless Entry & Anti-Theft Wiring Diagram (1 of 2) for Lexus GS 300 1997:

(body harness, behind rear seat) b41
(i/p harn, right side of dash)
(i/p harness,
(i/p harness, left kick panel)
(i/p harness, left side of dash)
(i/p harness, right side of dash)
(left side of dash)
(usa) i11 (canada) i32
+b1
+b2
Acc
Act+
Act-
B11
C10
C11
Center of dash) i13 (usa) i33 (canada)
Combination meter
Cty
D17
Dswd
Dswh
Dswl
Dswp
E20
Ecu-ig fuse 10a
Engine hood courtesy switch (center front of eng compt)
Exterior lights system (tail light relay)
G100 (front of left fender)
G200 (left kick panel)
G201 (behind glove box)
G203 (right kick panel)
G301 (below right front seat)
H19
H20
Head
Headlights system (headlight relay)
Horn
Horns system (horn relay)
Hot at all times
Hot in run
I102
I138
I143
I44
I48
I95 (i/p harn, right side of dash)
I96
I97
Ignition/ unlock warning switch (behind steering wheel)
Ind
Interior lights system (luggage compt light)
J/b 1 (left side of dash)
J/b 3 (center of dash)
J/b 6 (left side of dash)
K12
Ksw
Left front door lock and unlock switch (rearward of left door)
Lswd
Lswp
Lswr
Lug
Luggage compartment light switch (center rear of trunk)
Open door warning lamp
Power fuse 30a
Power main relay
Power window/ door lock control switch (center of left door)
Power windows and or power tops
Prly
Red
Right front door lock and unlock switch (rearward of right door)
Right front door lock control switch (center of right door)
Srly
Starting/charging
System (starter relay)
Tail
Theft deterrent ecu (left side of dash)
Theft deterrent indicator light (left side of dash)
Tsw
Ul1
Ul2
Ul3
Wireless door lock ecu (right rear of trunk)
Wireless door lock main switch

Keyless Entry & Anti-Theft Wiring Diagram (2 of 2) for Lexus GS 300 1997

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List of elements for Keyless Entry & Anti-Theft Wiring Diagram (2 of 2) for Lexus GS 300 1997:

(below right
(body harn, left front door sill) b8
(body harness, left front door sill)
(body harness, right front door sill)
(i/p harness, left side of dash) i43 (usa) i19 (canada)
(inside left rear door)
(inside right front door)
(inside right rear door)
A16
B12 (body harness, left rear door sill)
B15
B29
B30
B32 (body harness, right front door sill)
B34
B35
B42
B9 (body harness, left front door sill)
Cig fuse 15a
D10
Dome fuse 20a
Front seat)
G201 (behind glove box)
G203 (right kick panel)
G301
G400 (left side of luggage compartment)
Haz-horn fuse 20a
Hot at all times
Hot run or accy
I102
J/b 1 (left side of dash)
J/b 2 (left eng compt)
J/b 3 (center of dash)
J/c 5 (left side of dash)
J/c 7 (center of dash)
Left front door courtesy switch (near left rear door latch)
Left front door lock motor and door unlock detection switch (inside left front door)
Left rear door courtesy switch (near left rear door latch)
Left rear door lock motor and door unlock detection switch
Luggage comparment door opener motor (center rear of trunk)
Luggage compartment door opener switch (left side of dash)
Luggage compartment key unlock switch (center rear of trunk)
Right front door courtesy switch (near left rear door latch)
Right front door lock motor and door unlock detection switch
Right rear door courtesy switch (near right rear door latch)
Right rear door lock motor and door unlock detection switch
Theft deterrent horn (left rear of eng compt)

POWER MIRRORS

Power Mirror Wiring Diagram for Lexus GS 300 1997

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List of elements for Power Mirror Wiring Diagram for Lexus GS 300 1997:

Cig fuse 15a
D10
Defogger system
Down
G203 (right kick panel)
Hot in acc or run
J/b 1 (left side of dash)
J/b 3 (left side of dash)
J/c 4 (left side of dash)
J/c 7 (center of dash)
Left
Left hori- zontal
Left remote control mirror
Left up
Left vertical
Remote control mirror switch
Right
Right down
Right horizontal
Right remote control mirror
Right vertical

POWER SEATS

Power Seat Wiring Diagrams for Lexus GS 300 1997

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List of elements for Power Seat Wiring Diagrams for Lexus GS 300 1997:

B60 (body harness, below left front seat)
B62
B64 (body harness, below right front seat)
B65
Control
Down
Driver's power seat control switch
Driver's seat heater
Front
Front vertical
Front vertical motor (under left seat)
G202 (left side of dash)
G301 (under right front seat)
G404
H20
Hot at all times
Hot in run
J/b #1 (left kick panel)
J/c 12 (left side of luggage compartment)
J/c 7 (center of dash)
K10
Left
Lumbar
Lumbar support
Lumbar support motor (under left seat)
Motor (under
Passenger's
Passenger's seat heater
Passengers's seat heater
Power
Power fusible link 30a
Rear
Rear vertical
Rear vertical motor (under left seat)
Reclining
Reclining motor (under left seat)
Red
Right
Right seat)
Seat
Seat heater switch
Seat htr fuse 15a
Slide
Slide motor (under left seat)
Support
Switch
Vertical

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagrams for Lexus GS 300 1997

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List of elements for Power Top/Sunroof Wiring Diagrams for Lexus GS 300 1997:

(body harness, front of roof) b67
(center front of roof)
(i/p harness, left side of dash) i44
+b1
+b2
10a
30a
Close
Cls
Cty
D17
Dome fuse 10a
Down
Dwn
E20
Ecu-ig fuse
G200 (left kick panel)
G201 (behind glove box)
G301 (below right front seat)
G404
G908 (center front of roof)
Gnd
H19
H20
Hot at all times
Hot in on or start
Is1
Is2
J/b 1 (left kick panel
J/b 1 (left kick panel)
J/b 3 (center of dash)
J/c 12 (left rear side of trunk)
Left front door courtesy switch
Moon roof control relay (center front of roof)
Moon roof control switch
Moon roof motor & limit switch (center front of roof)
Mtr+
Mtr-
No. 1
No. 2
Open
Opn
Pnk
Power fuse
Power main relay
Prly
R/b 2 (left side of eng compt)
R/b 6 (left kick panel)
Red
Right front door courtesy switch
Theft deterrent ecu (right side of dash)

POWER WINDOWS

Power Window Wiring Diagram for Lexus GS 300 1997

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List of elements for Power Window Wiring Diagram for Lexus GS 300 1997:

(at left kick panel)
(body harness, left front door sill)
(i/p harness, left kick panel) i1
10a
Auto
Auto down module
B28 (body harness right front door sill)
Dome fuse 10a
Down
Ecu-ig fuse
G200 (at left kick panel)
G300 (under left front seat)
G301 (under right front seat)
G402 (left side of luggage compt)
H19
H20
Hot at all times
Hot in on or start
I34 (canada) (i/p harness, left side of dash)
J/b 1
J/b 1 (at left kick panel)
J/b 6 (at left kick panel)
J12
J13
Left front
Left front door courtesy switch
Left front power window motor
Left rear
Left rear power window control switch
Left rear power window motor
Lock switch
Power fusible link 30a
Power main relay
Power window master switch & door lock control switch
R/b 2 (left side of engine compartment)
Red
Right front
Right front door courtesy switch
Right front power window control switch
Right front power window motor
Right rear
Right rear power window control switch
Right rear power window motor
Theft deterrent ecu (above left kick panel)

RADIO

Radio Wiring Diagrams for Lexus GS 300 1997

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List of elements for Radio Wiring Diagrams for Lexus GS 300 1997:

(floor 1 harness, near right rear combination light) b59
(left dash brace) g206
+b2
A10
A11
A12
A13
A14
A15
Acc
Amp
Ant
Anta
Antb
Aud +
Aud -
Automatic cd changer (right side of luggage compartment)
B10
B12
B13
B14 pnk
B22
B24 (floor 1 harness, under rear of center console)
B44 (floor 1 harness, right front side of luggage compartment)
B55
B56 (floor 1 harness, near right rear combination light)
B57
B58
Beep
C10
C11
C12
C13
C14
Cdl+
Cdl-
Cdr+
Cdr-
Cellular phones system
Cig fuse 15a
D10
Dash harness, behind center of dash
Dash harness, behind lower center of dash
Dome fuse 10a
Fl+
Fl-
Floor 1 harness, near right rear combination light
Floor 1 harness, under front of center console
Fr+
Fr-
Frl+
Frl-
Frr+
Frr-
G405 (right rear side of luggage compartment)
Gnd
Hot at all times
Hot in acc or on
I112
I113
I114
I115
I116
Ill+
Ill-
Interior lights system
J/b 1 (below left side of dash)
J/b 3 (behind left side & center of dash)
J/c 13
Left front door speaker
Left rear door speaker
Luggage compartment light switch
Mute
Mute (tmlt)
Pnk
Power antenna system
R/b 2 (left front corner of engine compartment)
Rad 1 fuse 25a
Radio & player
Red
Right front door speaker
Right rear door speaker
Rl+
Rl-
Rr+
Rr-
Rrl+
Rrl-
Rrr+
Rrr-
Se1
Se2
Se3
Se4
Sgnd
Shield
Shield c13
Sp +
Sp -
Stereo component amplifier (right rear side of luggage compartment)
Telephone transceiver & speaker relay (left side of luggage compartment)
Txm+
Txm-
Txs+
Txs-
Wf+
Wf-
Woofer speaker (right side of rear shelf)

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Lexus GS 300 1997

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List of elements for Shift Interlock Wiring Diagram for Lexus GS 300 1997:

10a
15a
20a
A12
A14
A19
Acc
Cig fuse
D10
D17
E12
Ecu-ig fuse
G202 (behind combination meter)
Hot at all times
Hot in acc or run
Hot in run or start
J/b 1 (left side of dash)
J/b 3 (behind center of dash)
J/c 11
Key interlock solenoid (on steering column)
Kls+
Shift lock control switch
Shift lock ecu (below console)
Shift lock solenoid
Sls+
Sls-
Stop fuse
Stop light switch (on brake pedal support)
Stp

STARTING/CHARGING

Charging Wiring Diagram for Lexus GS 300 1997

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List of elements for Charging Wiring Diagram for Lexus GS 300 1997:

Acc
Alt fusible link 100a
Alt sensing fuse 7.5a
Alternator
Am2
Am2 fuse 15a
Battery
Charging warning light
Gauge fuse 15a
Hot in run or start
Ig2
Ignition switch
Instrument cluster
Junction block 1 (left kick panel)
Lock
Nca
Relay block 2 (left side of engine compt)
Start
Starting circuit

Starting Wiring Diagram for Lexus GS 300 1997

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List of elements for Starting Wiring Diagram for Lexus GS 300 1997:

(i/p harness, left side
(on transaxle)
Acc
Am1
Am2 fuse 15a
Battery
Engine controls system
I129
Ignition switch
J/c 3 (left side of dash)
Lock
Main fusible link 60a
Nca
Of dash)
Of dash) i130
Park/ neutral position switch
Relay block 2 (left side of engine compartment)
Run
Srly
St2
Start
Starter motor
Starter relay
Theft deterrent & door lock control ecu (behind left side of dash)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for Lexus GS 300 1997

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List of elements for Supplemental Restraint Wiring Diagram for Lexus GS 300 1997:

(behind glove box)
(left kick
+sl
+sr
-sl
-sr
A12
A13
A14
A8-a11
Acc
Acc run
Airbag squib (front passenger's airbag assembly)
Airbag squib (steering wheel pad)
C11 c11
C8 c8
Center airbag sensor assembly (in rear end of console)
Cig fuse 15a
Combination meter
Data link connector 1 (top of engine)
Data link connector 2 (behind left side of i/p)
F1 f1
F2 f2
G200 (left kick panel)
G203 (right kick panel)
Hot at all times
Hot in run or accy
Ig2
Ignition switch
J/b 1
J/b 1 (left kick panel)
J/b 1 j/b 1 (left (left kick kick panel) panel)
J/c 8
Left front left front left front airbag sensor airbag sensor airbag sensor (front of left strut tower)
Lock
Panel) panel)
Right front right front right front airbag sensor airbag sensor airbag sensor (front of right (front of right (front of right strut tower) strut tower) strut tower)
Srs fuse 7.5a
Srs warning ind
Start